64 lines
1.7 KiB
Dart
64 lines
1.7 KiB
Dart
import 'package:flutter/material.dart';
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class MyTab {
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final String text;
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final IconData? icon;
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final Widget? child;
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MyTab({required this.text, this.icon, this.child});
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}
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class Tabs extends StatefulWidget {
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final List<MyTab> tabs;
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final int selectedIndex;
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final void Function(int) onTap;
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const Tabs({super.key, required this.tabs, required this.selectedIndex, required this.onTap});
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@override
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State<Tabs> createState() => _TabsState();
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}
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class _TabsState extends State<Tabs> {
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int _selectedIndex = 0;
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@override
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void initState() {
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super.initState();
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_selectedIndex = widget.selectedIndex;
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}
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@override
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Widget build(BuildContext context) {
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return Row(
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children: [
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// 左侧选项卡列表
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SizedBox(
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width: 200,
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child: ListView.builder(
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itemCount: widget.tabs.length,
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itemBuilder: (context, index) {
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return ListTile(
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leading: widget.tabs[index].icon != null
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? Icon(widget.tabs[index].icon as IconData, color: _selectedIndex == index ? Colors.blue : Colors.grey)
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: null,
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title: Text(widget.tabs[index].text ?? '', style: TextStyle(color: _selectedIndex == index ? Colors.blue : Colors.grey)),
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selected: _selectedIndex == index,
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selectedTileColor: Colors.blue.withAlpha(26),
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selectedColor: Colors.blue,
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onTap: () {
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setState(() {
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_selectedIndex = index;
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});
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},
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);
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},
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),
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),
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// 右侧配置内容
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Expanded(child: widget.tabs[_selectedIndex].child ?? Container()),
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],
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);
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}
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}
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